Adjustable running-gear frame.



E. DRUESSEI..

ADJUSTABLE RUNNING GEAR FRAME.

APPLICATION FILED MAY I. |917.

1 ,284,2621. Patuted Nov. 12, 1918.

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Ynnwann DRUEssEL,

0F TROY,A ILLINOIS.

.ADJUSTABLE RNNING-GEAR Speeieation of Letters Patent.

l Patented Nov. 12, 1918.

Application led May 7, 1917. Serial No. 166,778.

To all whom t may concern.'

. Be it known that I, EDWARD DRUEssEL, a citizen of the United States, residin at Troy, rin the county of Madison and tate ofV Illinois, have invented a certain new and useful Adjustable Running-Gear Frame, of which the` following is a specification.

MyV inventionY relates to an adjustable running-f ear` frame for wheel supported apparatus, and hasA for its object to provide an adjustable wheelsupported frame capable of being. easily andquickly shortened or lengthened more particularly to enable an endless or laced belt to be easily and quickly tiglhtened or adjusted without stopping the be t.

A further object of the invention is to providel anadjustable frame which will be simple in construction, strong, capable of being quickly adjusted, and highly eliicient in its operations, and one which is adapted to support an internal combustion engine or other source of motive power, and suitable apparatus or mechanism to be driven there-- by. The-motive power is adapted to be positioned upon onesection of the frame, while the device or mechanism to be driven thereby is adapted to be positioned upon another section of the frame.

`With the aboveand other objects in view, the invention consists in certain new and novel features of construction, arrangements andcornbination of parts, as will be more fully described hereinafter and {inally pointed out in the laim hereto appended.

.Referring to the accompanying drawings forming a part of this specification whereln likecharacters ofreference denote similar parts throughout the several views:

Figure 1, is a plan view of my wheel supported', adjustable frame and apparatus, the frame beingconstructed in accordance with myl invention, and the engine mounted upon one vsectionof the frame being broken away with the exception .of a portion of the iiywheel and the belt .pulley fixed thereto.

Fig. 2, is a side elevation thereof.

vFig. 3, is a detailin sectional elevation taken on line X-X of Fig. 2, looking in direction ofthe arrow. y p

Referring to' the drawings, the reference character 1 designates the movable front axle; 2, the wheels therefor; 3, the rear axle; 4, the wheel therefor; 5, a suitable internal combustion engine, or its equivalent; 6, the belt pulley thereof; 7, a driven power shaft;

8, a belt pulley fixed thereto; and, 9, a circular saw fixed to the shaft 7.

` In carrying out the aim of my present invention, I employ a telescopic wheel-supported frame constructed as follows:

The frame consists of two sections, the outer section A, and the innersection B.

Thev outer section` A consists of the two side sills 10. The two side sills 10 are supported at their rear ends by means of the rear axle 3, which axle is suitably fixed to the underface of each side sill 10. To further unite the two side sills 10, I use the two cross-pieces 11 and `12 which are suitably fixed at each end to. the upper face of the side sills 10, as clearly shown in Figs. l and 2. The two lcross-pieces 11 and 12 are united at eachend by means of the cross-pieces 13 upon which are fixed the bearings 14 for supporting the power shaft 7. ,The front end of dinal slotted opening 15, the object of which will be clear hereinafter.

The inner section B of the frame consists of two side sills 16. These two side sills 16 are united at each end by means of the end cross-pieces 17. The two side sills 16 are supported at their forward ends by means of the front axle 1, which axle is pivoted, as at 18, to the underface of the forward crosspieces 17. The rear ends of the sills 16 are supported upon the rear axle 3 and are held from` upward movement by means v of the cross-pieces 11 and 12 which engage the upper faces of the side sills 16.

A cross-piece 19 is suitably fixed to the underfaceA ofeach inner sill 16, as clearly shown in Figs. 2 and. This cross-piece 19 projects beyond the side face of each sill 16, as at 20, thereby forming a support for the front ends ofv each outer side sill 10. The cross-piece 19 is further provided at each end with the upwardly projectngears 21 adapted to engage the outer side face of each outer sill 10.

A supporting pin 22 is fixed to each inner each side sill 10 is provided with a longitusill 16 and is adapted to pass through the slotted openings l5 of the outer sills 10, as clearly shown in Figs. 1 and 2. These pins and slotted openings serve to hold the two sections 'A and B in alinement, and, further, prevent extreme longitudinal movement 1n either direction.

Suitably fixedto' the upper facey ofeach inner sill 16, of section B, is a cross-piece 23 which has its ends 24 projecting over thev topfface of each of the side sills 10 of the outer-'sectiona/X, asfclearly shownin Figs. l

and 3. Each projecting end 24k-ofthe cross-o piece 28 is provided with a depending lip wwhich; inextreme rearward movement,

willgrenga-gefthe shoulders 26 ofthe outer sidefsillsf,10,-as clearly shown inFigs. l and 2.;

The means forV Aadjustingfthe two sections A and Bl such, for instance, as shortening. or-

lengthening the distance between the belt pulleys2 6r and; 81 for Y loosening or tightening theebeltg27, `consistsof a screw device 28 having thetwoscrew-threadedV shafts 29 and 3 0.'V The shafts-29 and 30 are provided withA the: leftshand screw threads and the rightehiand-y screwV threads.,l respectively. 'Igh'eLscrew-'threadedshaft 29V is adapted to pass :throughthe threaded collar 31, which collar' is yfixed to the r'cross-,piece 12.' Thev screw-*threaded shaft 30 is adapted to pass through the screw-threaded collar 32, which collaris fixed" to the cross-piece 23.'- The screw# device 28': isy provided with crossed openings, into `which openings'a suitable pulley` ymayibe placed 1for 4turningsthey screw# threaded shafts 29 and 'SOfin eitherdirection, as'is' manifesti Itjwill be readily-observed from Figs.l 1 and'f2:V of the drawings lthat when the screw device 28 and; the shafts `29 =and 30"thereoff are turned in one direction, that the two frame-sections A andi B" will be slidably y 'adjustedsoY as tolengthen thedi'stance be tweenL the belt pulleys 6 and 8, and'that stoodl that whenthe screw-threaded device A isturn'ed "in either'direction that both frame sections andB are movedin unison, and' due*to'the*factth'ateach frame is supported byffmeans of fthe supporting wheels .2V and iQ-thesliding,"adjustment of theframes A and? Bf is easily and readily accomplished, owing tothe factthat the. wheels will move when ther framesections are slidably ad framefwhich canfi'be used'fon.- variousspur-v poses otherl than acting: asf mei-e belttightener, as'fmore particularlyvdescribed'in this specications.

I am r Y aware: that variousslight` changes' may` bemade; ini theilparticular construction and' 'arrangements "fofi the` 'p artss'consti'dzutinfgmy i invention, hence v reserver` thee# rightf' to` make anyf'such changes For modicati'ons'fas maylff'airlyffallf within the' spiritfro my; ins vention' andi` the#y Scopeofrf the ,'a/Ppendef cla-ima` y n TheA many adra-ntagesfof; thefaAherein-fdes scribed adjustable frame and the many pure poses to which 'it-maybef applied; .wi'llfreadily suggest them-selves @tof those'skilled'linthe art vto' which tli inventibntf appeitains InfY lcombi-nation,` ai rui-lining? gear -f frame comprising `-al1-"outercframelseotin, consisting of pair of sill memb'efrssupportedffat their rear ends upon-ian a-Xlffa-ndeach vbeing'pr@ videdwith as slotted@ opening'n'ea'rv its for?? ward end; upper 'cross:piecesiforunitingtle two sills," an"irl innert frame-section, consisting' off'twofsil1memberseunited at theirs-ends" by means of cross pieces andisupportedattheir forward ends byfmeanseoffanfaxl and'i at their rear fendsfby\-f'meansfoff th'ellfrstmentioned" axle, supporting-A `wheels fr said axles, said: inner* sill?? members' being/Held from upward f movement ati their Jrear' ends by meansk off' the' afresaid'- uppercross pieces, va cross piece lfiiedfto thefunderfffce ofeach inner sill-member adapted `to-projec beyond the outer lside-faceofteachffouter sill member to form afsupport :fr tHe forward ends ofthe inner sillmemberstorestupon, l

means formed atx the ends" f off said f upper. cross piece adapted" to: prei'fentA spreading movement of l the vforward Eendspf V4Fthe :outer sill members, a laterally projectingpii'iz'red to each inner Isilli :memberadapted? to.. pass through the slotted openings in' the outer sill members `tor stop eXtreme" sliding movement of'fthe" outer and 'innert frame -`sections in either direction, a cross piece ii'iiedfto' the upper face of the. inner sillfmembers andY adapted toY project over the upp'erf'ceof both of the outer sill members, a stop formed upon the upper face of each outer sill member adapted to engage the projecting ends of said last mentioned cross piece when the outer and inner frame sections are at their innermost positions, a right and left handed screw threaded member supported by means of one of the upper cross pieces of the outer sill members and the upper cross piece of the` inner sill members in such a. manner that when the screw threaded member is turned in one direction it will cause an inward movement of the frame sections and in the other direction an extension of said :frame sections.

In testimony whereof, I have hereunto signed my name to the specification. Y

EDWARD DRUESSEL.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

